Substitute numerical characters with dots

Question

Substitute numerical characters with dots

Seeking a solution to replace certain ID numbers in my system with clickable numbers that open the related record. The challenge arises when the IDs are in the format of 123.456.789, as my regex also matches IP addresses like 123.[123.123.123] (where the [] indicates where it matches).

How can I prevent this unwanted behavior?

I attempted using the following regex:

/^(?!\.)([0-9]{3}\.[0-9]{3}\.[0-9]{3})(?!\.)/

I am specifically dealing with "notes" within a ticket system. When the note contains just the ID or an IP address, the regexp works fine. However, if the note includes additional text like:

Affected IDs:
641.298.855 (this, lead)
213.794.868
948.895.285

It fails to match the IDs correctly. Any assistance on resolving this issue and understanding what I might be doing wrong would be greatly appreciated.

javascript regex

Answer 1

Answer №1

Include the gm modifier to your regex pattern:

/^(?!\.)([0-9]{3}\.[0-9]{3}\.[0-9]{3})(?!\.)/gm

Check out the updated regex pattern here

Answer 2

Include the gm modifier to your regex pattern:

/^(?!\.)([0-9]{3}\.[0-9]{3}\.[0-9]{3})(?!\.)/gm

Check out the updated regex pattern here

Answer 3

Answer №2

Avoid using negative lookahead at the beginning, and there is no need for the g modifier. Just stick to the m modifier as it will suffice in this scenario because ^ denotes the start of a line, ensuring that the pattern only matches strings at the beginning without globally matching (i.e., multiple matches on a single line).

/^([0-9]{3}\.[0-9]{3}\.[0-9]{3})(?!\.)/m

For better performance, you can skip using a capturing group.

/^[0-9]{3}\.[0-9]{3}\.[0-9]{3}(?!\.)/m

Answer 4

Avoid using negative lookahead at the beginning, and there is no need for the g modifier. Just stick to the m modifier as it will suffice in this scenario because ^ denotes the start of a line, ensuring that the pattern only matches strings at the beginning without globally matching (i.e., multiple matches on a single line).

/^([0-9]{3}\.[0-9]{3}\.[0-9]{3})(?!\.)/m

For better performance, you can skip using a capturing group.

/^[0-9]{3}\.[0-9]{3}\.[0-9]{3}(?!\.)/m

Substitute numerical characters with dots

Answer №1

Answer №2

Similar questions

Custom action in Bokeh with a personalized icon

Node API session functioning properly on Postman but experiencing issues in web browser

Merge the date within every individual element

Guide on: Reloading an AngularJS Route

JavaScript code that functions similarly to VLOOKUP, allowing you to map input values from one field to

Experience the combined power of addthis, isotope, and nicescroll - all in a single

Using Rollup alongside Typescript to handle absolute imports for type declarations

`How can I use lodash to filter an array based on any matching value?`

What is the best way to transform an array of objects into a single string in JavaScript?

Build a stopwatch that malfunctions and goes haywire

JavaScript Implementation of Min Heap

Retrieving a column from a table and converting it into an array for utilization in a context processor on

The .map function doesn't seem to be functioning properly in the React application

Pass data from a JavaScript array to PHP with AJAX

Struggling to align the h1 tag with a p tag on the same line

Change the image size as you scroll through the window

Incorporate blocks into the text input box, reminiscent of how email applications manage to field

Steps to reinitialize the error code after removal from the roster

When attempting to print certain attributes, the Node.JS array unexpectedly becomes undefined

Error encountered when simulating the effect of calling 'insertPlayerData' function: ReferenceError - currentUserId has not been defined